Question

The cost of packaging the strawberries is 20% of the cost of fresh strawberries themselves. The cost of strawberries increased by 30% but the cost of packaging decreased by 50%, then find the percentage change of the cost of packed strawberries, if the cost of the packed strawberries is equal to the sum of the cost of fresh strawberries and cost of packaging.
1. 10%
2. 20%
3. 13.33%
4. 12%
5. 16.66%

Answer 1

Correct Answer - Option 5 : 16.66%

Calculation:

Let the initial cost of the fresh strawberries = 100

Packaging cost = 20

∴ Initial total cost = 120

After increasing in cost of fresh strawberries by 30%, then cost of fresh strawberries = 130

Cost of packaging goes down by 50%, then the cost of packaging = 10

∴ total cost after changes = 130 + 10

⇒ 140

∴ increased Cost = 140 – 120

⇒ 20

∴ % increased = 20/120 × 100

⇒ 16.66%

∴ the percentage change of the cost of packed strawberries is 16.66%.